Segment Reporting - Reconciliation of Revenue From Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Homebuilding:
Segment Reporting Information [Line Items]
Total financial services revenues	$ 1,240,520	$ 1,041,858
Homebuilding: | West
Segment Reporting Information [Line Items]
Total financial services revenues	707,311	616,611
Homebuilding: | Mountain
Segment Reporting Information [Line Items]
Total financial services revenues	335,128	324,717
Homebuilding: | East
Segment Reporting Information [Line Items]
Total financial services revenues	198,081	100,530
Financial Services:
Segment Reporting Information [Line Items]
Total financial services revenues	29,131	45,023
Financial Services: | West
Segment Reporting Information [Line Items]
Total financial services revenues	29,131	45,023
Financial Services: | Mortgage operations
Segment Reporting Information [Line Items]
Total financial services revenues	17,601	35,165
Financial Services: | Other
Segment Reporting Information [Line Items]
Total financial services revenues	$ 11,530	$ 9,858